【无线电技术英语选读】人民邮电.pdf
无线电技术英语选读 ENGLISHSELECTIONSOFRADIOENGINEERING 蒋隽人选编 王云枫审校
第九课 电视 Lesson Ten Microminiaturization第十课 超小型化 Lesson Eleven Multimeter 第十一课 万用表 Lesson Twelve Lines of Force 第十二课 电力线 Lesson Thirteen Radio Waves 第十三课 无线电波 Lesson Fourteen ScanningandDeflection 第十四课 扫描和偏转 Lesson Fifteen Principles of Garrier Gommunica-第十五课 载波通信原理 Lesson Sixteen The Relia
LESSONONE CONDUCTORS, INSULATORS AND SEMICONDUCTORS Asiswellknown,toconductanelectriccur- rentmeans totransmitelectrons.Allsubstanceshave some ability to transmit electrons, but their capacity ofconductivityis different.Some substances conduct electricity easily, while others strongly resist the flo